read excel file in the dasboard programmatically

To read a excel file inside wordpress, is there any function available

WordPress does not provide functions for reading spreadsheets. PHP provides functions for reading CSV files via fgetcsv etc, but these are for .csv files.

If you want to open an xls or xlsx file in code, and read its contents, you will need to find a PHP library for this, or implement the code yourself. A quick search of libraries on packagist reveals multiple pages of results for the word “excel”.

Keep in mind that what you are asking if not a WordPress question, but a generic PHP question, you don’t have to limit yourself to just WordPress to solve this.

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